/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 d3leaf@126.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.mapperdb.provider;

import static com.mapperdb.helper.SqlNodeHelper.getIfNotNull;
import static com.mapperdb.helper.SqlNodeHelper.getPkColumnNode;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.scripting.xmltags.SqlNode;
import org.apache.ibatis.scripting.xmltags.StaticTextSqlNode;

import com.mapperdb.helper.ResultHelper;

public class UpdateMapperProvider extends BaseMapperProvider {

	/**
	 * 通过主键更新全部字段
	 */
	public SqlNode updateByPrimaryKey() {
		//获取全部列
		Result[] columnList = resultEntity.results();
		//update table
		addSqlNode(new StaticTextSqlNode("UPDATE " + resultEntity.tableName()));
		List<SqlNode> ifNodes = new ArrayList<SqlNode>();
		for (Result column : columnList) {
			if (!column.id()) ifNodes.add(new StaticTextSqlNode(ResultHelper.formatPropertyEqColumn(column) + ", "));
		}
		addSetSqlNode(ifNodes);
		//where/if判断条件
		addSqlNode(pkSqlNode());
		return toSqlNode();
	}

	/**
	 * 通过主键更新不为null的字段
	 * @return
	 */
	public SqlNode updateByPrimaryKeySelective() {
		//update table
		addSqlNode(new StaticTextSqlNode("UPDATE " + resultEntity.tableName()));
		//获取全部列
		Result[] columnList = resultEntity.results();
		List<SqlNode> ifNodes = new ArrayList<SqlNode>();
		//全部的if property!=null and property!=''
		for (Result column : columnList) {
			if (!column.id()) ifNodes.add(getIfNotNull(column, ResultHelper.formatPropertyEqColumn(column) + ", "));
		}

		addSetSqlNode(ifNodes);
		//where/if判断条件
		addWhereSqlNode(getPkColumnNode(resultEntity));
		return toSqlNode();
	}

	/**
	 * 通过 WhereSq 更新
	 * @return
	 */
	public SqlNode updateByWhereSqlSelective(Map<String, Object> paramMap) {
		//update table
		addSqlNode(new StaticTextSqlNode("UPDATE " + resultEntity.tableName()));
		//获取全部列
		Result[] columnList = resultEntity.results();
		List<SqlNode> ifNodes = new ArrayList<SqlNode>();
		//全部的if property!=null and property!=''
		for (Result column : columnList) {
			if (!column.id()) {
				String property = "record." + column.property();
				ifNodes.add(getIfNotNull(property, ResultHelper.formatPropertyEqColumn(column, property) + ", "));
			}
		}

		addSetSqlNode(ifNodes);
		//where/if判断条件
		addWhereSqlNode(whereSql(paramMap));
		return toSqlNode();
	}

	/**
	 * 通过 WhereSq 更新
	 * @return
	 */
	public SqlNode updateByWhereSql(Map<String, Object> paramMap) {
		//update table
		addSqlNode(new StaticTextSqlNode("UPDATE " + resultEntity.tableName()));
		//获取全部列
		Result[] columnList = resultEntity.results();
		List<SqlNode> ifNodes = new ArrayList<SqlNode>();
		//全部的if property!=null and property!=''
		for (Result column : columnList) {
			if (!column.id()) {
				String property = "record." + column.property();
				if (!column.id())
					ifNodes.add(new StaticTextSqlNode(ResultHelper.formatPropertyEqColumn(column, property) + ", "));
			}
		}

		addSetSqlNode(ifNodes);
		//where/if判断条件
		addWhereSqlNode(whereSql(paramMap));
		return toSqlNode();
	}

}
